From the airport
Bus: You can take the bus line 200 from the Airport Budapest, station "Repüloter, P+R" to get to the station "Kobanya-Kispest". From there take the metro line M3 (blue line) for the station "Nyugati Palyaudvar". You can reach the hotel in a walking distance from about 5 minutes. It's a 60 minutes trip. You can choose between a single ticket (350 HUF), a day ticket (650 HUF) or a ticket for three days (4950 HUF). Within the ticket price, you can take the train and the bus in Budapest.
Take the metro to Nyugati tér (Western Square). NH Budapest City is a 5 minute walk from Nyugati tér.